Home / 13,806.90-19,055.28-10,280.16

Finding the Fourth Proportional to 13,806.90, 19,055.28 and 10,280.16

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Solution

The fourth proportional to 13,806.90, 19,055.28 and 10,280.16 is: 14,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.90 : 19,055.28 = 10,280.16 : x
  2. Step 2: Convert to fraction form
    13,806.90/19,055.28 = 10,280.16/x
  3. Step 3: Cross multiply
    13,806.90x = 19,055.28 × 10,280.16
  4. Step 4: Simplify right side
    13,806.90x = 195,891,327.24
  5. Step 5: Solve for x
    x = 195,891,327.24/13,806.90
  6. Step 6: Final answer
    x = 14,187.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.